STABILITY OF FACE LAYERS OF SANDWICH STRUCTURES WITH A LOCAL INTERLAYER DAMAGE

摘要

The effect of a local interlayer damage on the stability of a face layer of composite sandwich rods is investigated. Mathematical models are proposed for estimating the critical compressive stresses of two typical types of damage. Experimental and numerical data are obtained for two types of materials (with glass-fiber-reinforced plastics as face layers and Rohacell WF51 and Divinycell H60 foams as the core). The analytical results agree well with the experimental data.